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<?php |
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/** |
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* Class FactoryHelpers |
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* |
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* @created 20.10.2022 |
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* @author smiley <[email protected]> |
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* @copyright 2022 smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\HTTP\Psr17; |
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use chillerlan\HTTP\Psr7\Stream; |
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use InvalidArgumentException; |
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use Psr\Http\Message\StreamInterface; |
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use function fopen, gettype, in_array, is_scalar, method_exists; |
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/** |
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* |
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*/ |
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class FactoryHelpers{ |
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public const STREAM_MODES_READ_WRITE = [ |
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'a+', 'c+', 'c+b', 'c+t', 'r+' , 'r+b', 'r+t', 'w+' , 'w+b', 'w+t', 'x+' , 'x+b', 'x+t' |
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]; |
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public const STREAM_MODES_READ = [...self::STREAM_MODES_READ_WRITE, 'r', 'rb', 'rt']; |
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public const STREAM_MODES_WRITE = [...self::STREAM_MODES_READ_WRITE, 'a', 'rw', 'w', 'wb']; |
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/** |
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* Create a new writable stream from a string. |
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* |
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* The stream SHOULD be created with a temporary resource. |
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* |
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* @param string $content String content with which to populate the stream. |
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* @param string $mode one of \chillerlan\HTTP\Psr17\STREAM_MODES_WRITE |
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* @param bool $rewind rewind the stream |
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* |
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* @return \Psr\Http\Message\StreamInterface |
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*/ |
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public static function create_stream(string $content = '', string $mode = 'r+', bool $rewind = true):StreamInterface{ |
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if(!in_array($mode, self::STREAM_MODES_WRITE)){ |
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throw new InvalidArgumentException('invalid mode'); |
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} |
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$stream = new Stream(fopen('php://temp', $mode)); |
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if($content !== ''){ |
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$stream->write($content); |
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} |
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if($rewind){ |
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$stream->rewind(); |
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} |
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return $stream; |
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} |
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/** |
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* @param mixed $in |
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* |
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* @return \Psr\Http\Message\StreamInterface |
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*/ |
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public static function create_stream_from_input($in = null):StreamInterface{ |
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$in ??= ''; |
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// not sure about this one, it might cause: |
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// a) trouble if the given string accidentally matches a file path, and |
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// b) security implications because of the above. |
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// use with caution and never with user input! |
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# if(\is_string($in) && \is_file($in) && \is_readable($in)){ |
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# return new Stream(\fopen($in, 'r')); |
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# } |
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# |
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if($in instanceof StreamInterface){ |
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return $in; |
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} |
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if(is_scalar($in)){ |
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return self::create_stream((string)$in); |
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} |
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$type = gettype($in); |
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if($type === 'resource'){ |
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return new Stream($in); |
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} |
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elseif($type === 'object' && method_exists($in, '__toString')){ |
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return self::create_stream((string)$in); |
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} |
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throw new InvalidArgumentException('Invalid resource type: '.$type); |
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} |
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} |
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